Dissolver for solid and liquid materials

ABSTRACT

An apparatus for mixing and dissolving a solid in a solvent comprises an injector device for initially mixing the two materials together, and a centrifugal dissolver comprising an helical dflector and a cylindrical screen, for receiving the initial mixture and thoroughly dissolving the solid in the solvent.

United States Patent 1 1 1111 3,759,491 Pfeuffer 1 Sept. 18, 1973DISSOLVER FOR souu AND LI UID 3,338,560 8/1967 1661161 et al. 259/111 xMATERIALS 3,254,045 5/1966 Sinclair 259 4 x 3,207,627 9/1965 Dietzel eta1 127/20 X [76] Inventor: Anton Pfeuffer, New York, N.Y.

2 F s 29 1971 FOREIGN PATENTS OR APPLICATIONS 1 A17456 7/1956 Germany259/18 [21] Appl. No.: 184,744 7 A Primary Examiner-John Petrakes 52 us.(:1 259/4, 127/22 259/60, hammer-Ma Cantor 259/95 Attorney-Nolteand'NoIte [51] Int. Cl B0111/00, B011 5/06,'Cl3f 3/00 [58] Field ofSearch 127/9, 25, 55, 20, [57] ABSTRACT 127/22 64; 210,304; 2519/95 60An apparatus for mixing and dissolving a solid in a solvent comprises aninjector device for initially mixing [56] References Cited the twomaterials together, and a centrifugal dissolver UNITED STATES PATENTScomprising an helical dflector and a cylindrical screen, 7 I 1 y Jr127/20 X for receiving the initial mixture and thoroughly dissolv- Bartha ing the solid in the solVenL 360,441 4/1887 Howes 210/121 X 1 416,70912/1889 2 Claims, 4 Drawing Figures Bauder 127/64 DISSOLVER FOR SOLIDAND LIQUID MATERIALS The present invention relates to a system forcombining solid and liquid media in the proper proportion and sequencewith high speed.

An object of the present invention is to provide a closed circuitdissolving system for solid material, such as sugar, into a flowingliquid stream.

The invention will now be further described by detailed reference tospecific embodiments which are illustrated in the drawings, wherein:

FIG. 1 is a diagrammatic view of a closed system for a sequential sugarmixing process;

FIG. 2 is a diagrammatic view of an open system similar to the system ofFIG. 2;

FIG. 3 is a diagrammatic view of a syrup mixer;

FIG. 4 is a diagrammatic view of a closed circuit dissolvingarrangement.

Referring now to FIG. 1, a sugar mixing and dissolving apparatusencompassing a closed system is illustrated. A dispenser-mixer device 24is shown in which the granulated sugar is injected by the injector 26into the line 28 and into the dissolver 30A provided with an helicaldeflector 32 and a cylindrical central screen 34. Thus, the mixturemoves up helical deflector 32 and is directed into the screen 34 anddown through line 36 back to the pump 38 of the closed system. Themixture not passing through'the screen 34 continues on through line 40to the substantially similar dissolvers 30B and 30C respectively.Thelatter two dissolvers have essentially the same construction asdissolver 30A, and in which like parts have like reference numerals.

FIG. 2 illustrates another sequential sugar mixing apparatus havingdissolvers 40A, 40B and 40C connected at various levels in an opensystem, whereby a gravity flow is accomplished from dissolver 40A todissolver 40B and then to dissolver 40C. The helical deflectors 32 arethe same as those shown in the closed system of FIG. 1. Similarly, thecentral screen 34 is identical with that shown in the closed system ofFIG. 1.

Thus, as shown in FIGS. 1 and 2, all soluble material is substantiallydissolved when reaching the top of each of the dissolvers and there ispractically no introduction of matter that'is not dissolved in thesystem. It should also be noted that in the construction shown in FIG.the open dissolvers are in averticaI, staggered relationship so thatsiphons can be used .to transfer liquid from one dissolver to the otherin a continually downward direction,

2 Referring now to FIG. 3 in which a high intensity syrup mixer isshown, a dispenser mixer 42 is illustrated having a spray jet supplyintroduced therein at 44. In

this construction the injector receives and passes the mixture into thedissolver 48 having a helical deflector '50 and a circumferential,cylindrical filter screen 52. a

The screen is surrounded by a water jacket 54. A bypass 56 is shown andthe syrup drain is indicated at 58. A pump motor 60, is also shownconnected into the system. Thus, it should be noted that each of thehelical deflectors 50 are surrounded by the circumferential cylindricalfilter screens 52 and form a centrifugal filter which throws sugarparticles to the outside screen 52. Therefore, high liquid velocity andfriction work together to consume all soluble matter until the movingmatter reaches the top of the dissolver. This procedure is repeatedagain and the result is a clear, filtered syrup which is collected inthe outer rim and drawn off through the drain 58.

FIG. 4 shows a closed circuit dissolving system having a dispenser mixer61 in which the solid material to be mixed with a flowing liquid issupplied to 'an injector 62. A pump 64 moves the mixture through anin-line dissolver-mixer 66, and through conduit 68 to complete thecircuit back to pump The product is col- 'lected in collecting tank 70.It should be apparent that this is a simplified, version of a closedcircuit apparatus which is designed to function effectively.

I claim:

l. A mixer comprising a dispenser of a mixture of a solid and a solventfor said solid, an injector connected to receive the mixture from saiddispenser, a pump connected to supply motive fluid to said injector, adissolver comprising-a central chamber within which a helical deflectoris disposed, a screen surrounding said deflector and separating thecentral chamber from a solu-- by said deflector to be directed againstsaid screen, said solid being consumed in the central chamber and asolution passing through the screen to the collection chamber.

y 2. A mixer as claimed in claim solvers arranged in series.

1 comprising two dis

1. A mixer comprising a dispenser of a mixture of a solid and a solventfor said solid, an injector connected to receive the mixture from saiddispenser, a pump connected to supply motive fluid to said injector, adissolver comprising a central chamber within which a helical deflectoris disposed, a screen surrounding said deflector and separating thecentral chamber from a solution collection chamber and a water jacketsurrounding said collection chamber, said injector delivering to saidcentral chamber whereby the mixture delivered to the central chamber hasa centrifugal force imparted to it by said deflector to be directedagainst said screen, said solid being consumed in the central chamberand a solution passing through the screen to the collection chamber. 2.A mixer as claimed in claim 1 comprising two dissolvers arranged inseries.